Bentonite
Bentonite is naturally occurring hydrated Aluminum Silicate primarily composed of montmorillonite, a fine-grained mineral belonging to the smectite group. It forms from weathering of volcanic ash, most often in the presence of water. The key characteristic of bentonite is its ability to absorb water and expand. When hydrated, bentonite particles swell and form a gel-like substance with an enormous surface area. This property is known as “swelling” or “thixotropy,” and it is what gives bentonite its remarkable properties.
Bentonite’s unique properties, particularly its swelling capacity and high plasticity, make it valuable in various industrial and environmental applications, ranging from drilling fluids in oil and gas exploration to soil improvement and as a binder in foundry applications.
Bentonite’s unique properties, particularly its swelling capacity and high plasticity, make it valuable in various industrial and environmental applications, ranging from drilling fluids in oil and gas exploration to soil improvement and as a binder in foundry applications.
Property | Description |
---|---|
Composition | Predominantly composed of montmorillonite clay minerals |
Color | Typically brown, grey but can vary |
Texture | Fine, smooth, and powdery when dry; slippery when wet |
Plasticity | High plasticity, allowing it to form a sticky, cohesive paste |
Swelling Capacity | Exceptional ability to absorb water and expand |
Cation Exchange Capacity | High CEC (Cation Exchange Capacity) |
pH | Typically alkaline (pH greater than 8) |
Melting Point | Does not melt, but can lose water at high temperatures |
Density | Low density when dry, high density when hydrated |
Chemical Stability | Chemically inert, stable in most environments |
High Surface Area | Bentonite’s layered structure results in a relatively high surface area, which enhances its adsorption and binding capabilities |
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With our exceptional products, we cater to a diverse range of industries, providing innovative solutions for various applications. Our commitment to excellence and dedication to customer satisfaction make us the preferred choice for businesses across the globe.
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